1. Social Interactome Breathalyzer “Breathe-EZ”
Virginia Tech - Blacksburg, VA 24061
CS 4624 Spring 2016
Dr. Edward A. Fox
April 25, 2016
Members: Christopher Aska Toda, Colton Walker, Chris Cornett, Ben Robohn
Client: John Crawford, Mikhail Koffarnus

2. Introduction Intended to aid users in their road to recovery
Randomly scheduled breathalyzer readings
Monetary rewards for passed measurements
Passing BAC of 0.00
Introduction
Mention that reward increases with successive passed tests

3. Development Tools
Android Studio
Java
XML
Motorola Nexus 6

4. Requirements Breathe-EZ Application:
BAC recorded, and will be identified and the ARRC server checks the three photos for facial recongition.
Interface with BACtrack Breathalyzer to record the user’s Blood Alcohol Content (BAC).
Take three photos of the participant while they are using the device for identification purposes.
Identify the best photo and send it through a server for facial recognition.

5. Problems/Solutions Problem Solution
Camera launches new activity on new screen
Implemented SurfaceView camera preview
Camera preview displayed and saved sideways
Set rotation and display orientation in source code
Android.media.FaceDetector library not compatible with Samsung devices
Study restricted to non-Samsung devices
Unable to find a free and effective Android facial recognition library
The application performs facial detection to select best picture, which the ARRC will use to identify users

6. Application Walkthrough
1. Open Application

7. Application Walkthrough
2. Press “Connect” to connect to your BACtrack device

8. Application Walkthrough
3. Press “Measure” to begin the measurement process

9. Application Walkthrough
4. After countdown, start blowing and keep your face in the camera preview

10. Application Walkthrough
5. Application displays BAC and accepts or rejects pictures

11. Lessons Learned Important to meet with the client
Being honest and realistic about one’s abilities when faced with obstacles
Problem with camera for every device but SDK helped
Meeting with client is very important, we learned this early on and always scheduled meetings in advance about every two weeks.
It is good to be honest and realistic about your abilities when speaking to your client.
Android is not perfect but has a working solution to most common problems.
We had issues with the camera that we found out were just problems everyone had to deal with but the SDK makes it easy to work around most of them

12. Acknowledgements Dr. Edward Fox
Professor, Department of Computer Science
Virginia Tech
Mr. John T. Crawford
Research Programmer
Virginia Tech Carilion Research Institute - Addiction Recovery Research Center
Dr. Mikhail Koffarnus
Research Assistant Professor

13. Special Thanks Sponsor: National Institutes of Health (NIH)
Granded funding for research
Grant Title: Remote Alcohol Monitoring to Fascilitate Abstinence Reinforcement
Project Number: 5R21AA

14. References http://research.vtc.vt.edu/people/mikhail-koffarnus

15. Thank you!